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20435067541 = 719011535663
BaseRepresentation
bin10011000010000001…
…100110001010010101
31221202011011222201101
4103002001212022111
5313322334130131
613215430230101
71322254131250
oct230201461225
957664158641
1020435067541
118737076779
123b637b5331
131c08876955
14dbbdb8097
157e9059c61
hex4c2066295

20435067541 has 8 divisors (see below), whose sum is σ = 23366663424. Its totient is φ = 17506546800.

The previous prime is 20435067533. The next prime is 20435067553. The reversal of 20435067541 is 14576053402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20435067541 - 23 = 20435067533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20435067541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20435067581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754525 + ... + 781138.

It is an arithmetic number, because the mean of its divisors is an integer number (2920832928).

Almost surely, 220435067541 is an apocalyptic number.

It is an amenable number.

20435067541 is a deficient number, since it is larger than the sum of its proper divisors (2931595883).

20435067541 is a wasteful number, since it uses less digits than its factorization.

20435067541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537571.

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 20435067541 in words is "twenty billion, four hundred thirty-five million, sixty-seven thousand, five hundred forty-one".

Divisors: 1 7 1901 13307 1535663 10749641 2919295363 20435067541